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Dark Crimson Underwing
Catocala sponsa (Linnaeus, 1767)
Erebidae: Erebinae
2455 / 72.081
Photo © Graham Geen,  06/09/2021 - Thetford Forest nr. Brandon

Similar Suffolk Species
Light Crimson Underwing
Catocala promissa
Red Underwing
Catocala nupta
Forewing: 29-34mm
Flight: July - September
Foodplant:   Pedunculate Oak, Sessile Oak
Nat Status: Red Data Book
Verification Grade:  Adult: 3

Morley's Final Catalogue: An historic species with us. Taken very rarely about 1870 at both Bentley and Holbrook by Garrett and Tim Last; but not recorded later, and now most likely extinct, though the latter locality is well wooded and recently quite unworked.

Recent status: Failed to appear in the county during the twentieth century.

A dozen records have been amassed in the twenty-first century to date, with the first at Dunwich Heath on 14.08.2007 (C. Moore).

Further records followed at Landguard on 02.08.2011, 13.08.2015 and 23.07.2017 (N. Odin). One was trapped at Bawdsey Hall on 19.07.2017 (M.J. Deans).

An influx in 2018 resulted in four singletons trapped along the coast in the same week; at Bawdsey Hall (M.J. Deans) and Kessingland (A. Eaton) on the night of 02.07.2018; at Landguard on 03.07.2018 (N. Odin) and again at Bawdsey Hall on 04.07.2018 (M.J. Deans). A later record followed on 15.07.2018 when one was found at rest on a building on Orfordness (M. Marsh). A further record followed at Bawdsey Hall on 08.08.2018 (M.J. Deans) with a late example at Hollesley on 14.09.2018 (R. Watson).

Whilst some of these records almost certainly relate to immigrants, there has to be a chance that this moth has recolonised some of its former haunts.

Identification: Compare with Light Crimson Underwing.

Retained Specimen / Photograph will be Required.

Recorded in 12 (21%) of 58 10k Squares.
First Recorded in 2007.
Last Recorded in 2021.

Latest 5 Records
Date#VC10k Area
11/08/2021125TG50 - Gorleston
29/09/2020125TM35 - Snape/Tunstall
22/09/2020125TM35 - Snape/Tunstall
21/09/2020125TM35 - Snape/Tunstall
23/08/2020125TM35 - Snape/Tunstall
Further info: Catocala sponsa
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